If a woman of blood type A has a child of blood type O, the father may belong to
A)blood type A, AB, or O, but not B.
B)blood type O only.
C)blood type A or B only.
D)blood type A, B, or O, but not AB.
E)any blood type other than A.

Question

Quizplus · Accepted Answer

The child has blood type O, which means both parents must carry the O allele. The mother with blood type A can have genotype AO. The father can be type A (genotype AO), type B (genotype BO), or type O (genotype OO), but not AB, as AB does not carry the O allele.

If a Woman of Blood Type a Has a Child